Matthew Sloyan | 80fbcd5 | 2021-01-07 13:28:47 +0000 | [diff] [blame] | 1 | // |
| 2 | // Copyright © 2020 Arm Ltd and Contributors. All rights reserved. |
| 3 | // SPDX-License-Identifier: MIT |
| 4 | // |
| 5 | |
| 6 | #include "ClContextDeserializer.hpp" |
| 7 | #include "ClContextSchema_generated.h" |
| 8 | |
| 9 | #include <armnn/Exceptions.hpp> |
| 10 | #include <armnn/utility/NumericCast.hpp> |
| 11 | |
| 12 | #include <flatbuffers/flexbuffers.h> |
| 13 | |
| 14 | #include <fmt/format.h> |
| 15 | |
| 16 | #include <cstdlib> |
| 17 | #include <fstream> |
| 18 | #include <iostream> |
| 19 | #include <vector> |
| 20 | |
| 21 | namespace armnn |
| 22 | { |
| 23 | |
| 24 | void ClContextDeserializer::Deserialize(arm_compute::CLCompileContext& clCompileContext, |
| 25 | cl::Context& context, |
| 26 | cl::Device& device, |
| 27 | const std::string& filePath) |
| 28 | { |
| 29 | std::ifstream inputFileStream(filePath, std::ios::binary); |
| 30 | std::vector<std::uint8_t> binaryContent; |
| 31 | while (inputFileStream) |
| 32 | { |
| 33 | char input; |
| 34 | inputFileStream.get(input); |
| 35 | if (inputFileStream) |
| 36 | { |
| 37 | binaryContent.push_back(static_cast<std::uint8_t>(input)); |
| 38 | } |
| 39 | } |
| 40 | inputFileStream.close(); |
| 41 | DeserializeFromBinary(clCompileContext, context, device, binaryContent); |
| 42 | } |
| 43 | |
| 44 | void ClContextDeserializer::DeserializeFromBinary(arm_compute::CLCompileContext& clCompileContext, |
| 45 | cl::Context& context, |
| 46 | cl::Device& device, |
| 47 | const std::vector<uint8_t>& binaryContent) |
| 48 | { |
| 49 | if (binaryContent.data() == nullptr) |
| 50 | { |
| 51 | throw InvalidArgumentException(fmt::format("Invalid (null) binary content {}", |
| 52 | CHECK_LOCATION().AsString())); |
| 53 | } |
| 54 | |
| 55 | size_t binaryContentSize = binaryContent.size(); |
| 56 | flatbuffers::Verifier verifier(binaryContent.data(), binaryContentSize); |
| 57 | if (verifier.VerifyBuffer<ClContext>() == false) |
| 58 | { |
| 59 | throw ParseException(fmt::format("Buffer doesn't conform to the expected Armnn " |
| 60 | "flatbuffers format. size:{0} {1}", |
| 61 | binaryContentSize, |
| 62 | CHECK_LOCATION().AsString())); |
| 63 | } |
| 64 | auto clContext = GetClContext(binaryContent.data()); |
| 65 | |
| 66 | for (Program const* program : *clContext->programs()) |
| 67 | { |
| 68 | auto programName = program->name()->c_str(); |
| 69 | auto programBinary = program->binary(); |
| 70 | std::vector<uint8_t> binary(programBinary->begin(), programBinary->begin() + programBinary->size()); |
| 71 | |
| 72 | cl::Program::Binaries binaries{ binary }; |
| 73 | std::vector<cl::Device> devices {device}; |
| 74 | cl::Program theProgram(context, devices, binaries); |
| 75 | theProgram.build(); |
| 76 | clCompileContext.add_built_program(programName, theProgram); |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | } // namespace armnn |